The cold plunge became the ultimate biohacker flex. The research paints a much more complicated picture — and for lifters, it might actually be counterproductive. Cold water immersion went from a niche recovery tool used by elite athletes to a mainstream wellness trend seemingly overnight. Social media is full of people climbing into ice baths at dawn, filming their gasping reactions, and claiming benefits ranging from reduced inflammation to improved focus to accelerated fat loss. Cold plunge tubs are now a multi-billion dollar market. It made ACSM's trending fitness list in 2025. The appeal is understandable. There's something viscerally satisfying about doing something uncomfortable and believing it makes you better. And cold exposure does have real physiological effects — it triggers a norepinephrine release, vasoconstriction, and an acute stress response that genuinely makes you feel alert and energized. But "it makes you feel good" and "it improves your t...
Every fitness influencer told you to train in the stretched position for maximum growth. The actual data is far less dramatic than the headlines suggest. If you follow evidence-based fitness content at all, you've been bombarded with lengthened partials over the past year. The concept took over YouTube, Reddit, and every training program from RP Strength to Jeff Nippard's channels. The claim was bold — training at long muscle lengths through partial range of motion is superior to full range of motion for muscle growth. Not just different. Superior. Dr. Mike Israetel called stretch-mediated hypertrophy one of the most important discoveries in training science in years. Fitness influencers restructured entire programs around it. People started doing half-rep incline curls and deep-stretch flyes as if full range of motion was suddenly obsolete. Then the research caught up to the hype. And the story it tells is a lot less exciting. Photo by Samuel Girven on...